In this paper,a improved method compared with the traditional Markowitz model was applied by introducing the risk aversion factor and setting the upper and lower limits of the investment proportion.
本文将传统的马科维茨模型进行了改进,引入了风险厌恶因子,对投资比例设定了上下限。
参考来源 - 并行遗传算法在证券投资组合中的应用·2,447,543篇论文数据,部分数据来源于NoteExpress
格雷厄姆补充说,你的股票投资比例永远不应低于25%(当你认为股票昂贵而债券便宜的时候),也不能高于75%(当股票看起来价格低廉的时候)。
Graham added that your stock proportion should never go below 25% (when you think stocks are expensive and bonds are cheap) or above 75% (when stocks seem cheap).
据花旗说,巴西企业相对较高的自由流通股比例(59%)给了投资者更多的安慰。
A relatively high free float of 59% for Brazilian companies, according to Citi, provides further comfort for investors.
由于FDI在撒哈拉以南非洲、欧洲中亚和拉丁美洲的投资总额中所占比例高达20%,影响会很严重。
This has serious implications, as FDI represents as much as 20 percent of total investment in Sub-Saharan Africa, Europe and Central Asia, and Latin America.
Somebody else might say, well I want to just hold this point, I want to hold the tangency portfolio.
而另外的某些人可能会说,我就想按这个点的比例来持有投资,我想持有切线投资组合。
Of course, the money had to come from somewhere, so bond allocations were at a fifteen-year low.
当然投资股票的钱不是凭空变出来的,于是债券投资所占比例跌至15年来最低
The first, asset allocation, basically deals with which assets you have in your portfolio and in which proportion you hold each of those assets.
首先,资产配置主要是指,你的投资组合包括哪些资产,以及每种资产所占的比例
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